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gtk2/gtk/gtklistitemmanager.c

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listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
/*
* Copyright © 2018 Benjamin Otte
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Benjamin Otte <otte@gnome.org>
*/
#include "config.h"
#include "gtklistitemmanagerprivate.h"
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
#include "gtklistitemwidgetprivate.h"
listview: Try to keep the list items in order when scrolling Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
2018-09-28 01:33:16 +00:00
#include "gtkwidgetprivate.h"
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
#define GTK_LIST_VIEW_MAX_LIST_ITEMS 200
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
struct _GtkListItemManager
{
GObject parent_instance;
GtkWidget *widget;
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
GtkSelectionModel *model;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
GtkListItemFactory *factory;
listitemwidget: Add single-click-activate Add a mode to GtkListItemWidget that activates on single click and selects on hover. Make GtkListItemManager set this on its items when its own 'property' of the same name is set.
2019-12-14 01:56:32 +00:00
gboolean single_click_activate;
listview: Pass the CSS name of listitems to the manager ... instead of hardcoding "row".
2019-10-12 11:16:54 +00:00
const char *item_css_name;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
GtkRbTree *items;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
GSList *trackers;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
};
struct _GtkListItemManagerClass
{
GObjectClass parent_class;
};
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
struct _GtkListItemTracker
{
guint position;
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
GtkListItemWidget *widget;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
guint n_before;
guint n_after;
};
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static GtkWidget * gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
guint position,
GtkWidget *prev_sibling);
static GtkWidget * gtk_list_item_manager_try_reacquire_list_item
(GtkListItemManager *self,
GHashTable *change,
guint position,
GtkWidget *prev_sibling);
static void gtk_list_item_manager_update_list_item (GtkListItemManager *self,
GtkWidget *item,
guint position);
static void gtk_list_item_manager_move_list_item (GtkListItemManager *self,
GtkWidget *list_item,
guint position,
GtkWidget *prev_sibling);
static void gtk_list_item_manager_release_list_item (GtkListItemManager *self,
GHashTable *change,
GtkWidget *widget);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
G_DEFINE_TYPE (GtkListItemManager, gtk_list_item_manager, G_TYPE_OBJECT)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
void
gtk_list_item_manager_augment_node (GtkRbTree *tree,
gpointer node_augment,
gpointer node,
gpointer left,
gpointer right)
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
{
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
GtkListItemManagerItem *item = node;
GtkListItemManagerItemAugment *aug = node_augment;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
aug->n_items = item->n_items;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
if (left)
{
GtkListItemManagerItemAugment *left_aug = gtk_rb_tree_get_augment (tree, left);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
aug->n_items += left_aug->n_items;
}
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
if (right)
{
GtkListItemManagerItemAugment *right_aug = gtk_rb_tree_get_augment (tree, right);
aug->n_items += right_aug->n_items;
}
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
}
static void
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_clear_node (gpointer _item)
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
{
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
GtkListItemManagerItem *item = _item;
g_assert (item->widget == NULL);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
}
GtkListItemManager *
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_new_for_size (GtkWidget *widget,
listview: Pass the CSS name of listitems to the manager ... instead of hardcoding "row".
2019-10-12 11:16:54 +00:00
const char *item_css_name,
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gsize element_size,
gsize augment_size,
GtkRbTreeAugmentFunc augment_func)
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
{
GtkListItemManager *self;
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
g_return_val_if_fail (element_size >= sizeof (GtkListItemManagerItem), NULL);
g_return_val_if_fail (augment_size >= sizeof (GtkListItemManagerItemAugment), NULL);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
self = g_object_new (GTK_TYPE_LIST_ITEM_MANAGER, NULL);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
/* not taking a ref because the widget refs us */
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
self->widget = widget;
listview: Pass the CSS name of listitems to the manager ... instead of hardcoding "row".
2019-10-12 11:16:54 +00:00
self->item_css_name = g_intern_string (item_css_name);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
self->items = gtk_rb_tree_new_for_size (element_size,
augment_size,
augment_func,
gtk_list_item_manager_clear_node,
NULL);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
return self;
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gpointer
gtk_list_item_manager_get_first (GtkListItemManager *self)
{
return gtk_rb_tree_get_first (self->items);
}
gpointer
gtk_list_item_manager_get_root (GtkListItemManager *self)
{
return gtk_rb_tree_get_root (self->items);
}
/*
* gtk_list_item_manager_get_nth:
* @self: a #GtkListItemManager
* @position: position of the item
* @offset: (out): offset into the returned item
*
* Looks up the GtkListItemManagerItem that represents @position.
*
* If a the returned item represents multiple rows, the @offset into
* the returned item for @position will be set. If the returned item
* represents a row with an existing widget, @offset will always be 0.
*
* Returns: (type GtkListItemManagerItem): the item for @position or
* %NULL if position is out of range
**/
gpointer
gtk_list_item_manager_get_nth (GtkListItemManager *self,
guint position,
guint *offset)
{
GtkListItemManagerItem *item, *tmp;
item = gtk_rb_tree_get_root (self->items);
while (item)
{
tmp = gtk_rb_tree_node_get_left (item);
if (tmp)
{
GtkListItemManagerItemAugment *aug = gtk_rb_tree_get_augment (self->items, tmp);
if (position < aug->n_items)
{
item = tmp;
continue;
}
position -= aug->n_items;
}
if (position < item->n_items)
break;
position -= item->n_items;
item = gtk_rb_tree_node_get_right (item);
}
if (offset)
*offset = item ? position : 0;
return item;
}
guint
gtk_list_item_manager_get_item_position (GtkListItemManager *self,
gpointer item)
{
GtkListItemManagerItem *parent, *left;
int pos;
left = gtk_rb_tree_node_get_left (item);
if (left)
{
GtkListItemManagerItemAugment *aug = gtk_rb_tree_get_augment (self->items, left);
pos = aug->n_items;
}
else
{
pos = 0;
}
for (parent = gtk_rb_tree_node_get_parent (item);
parent != NULL;
parent = gtk_rb_tree_node_get_parent (item))
{
left = gtk_rb_tree_node_get_left (parent);
if (left != item)
{
if (left)
{
GtkListItemManagerItemAugment *aug = gtk_rb_tree_get_augment (self->items, left);
pos += aug->n_items;
}
pos += parent->n_items;
}
item = parent;
}
return pos;
}
gpointer
gtk_list_item_manager_get_item_augment (GtkListItemManager *self,
gpointer item)
{
return gtk_rb_tree_get_augment (self->items, item);
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
static void
gtk_list_item_tracker_unset_position (GtkListItemManager *self,
GtkListItemTracker *tracker)
{
tracker->widget = NULL;
tracker->position = GTK_INVALID_LIST_POSITION;
}
static gboolean
gtk_list_item_tracker_query_range (GtkListItemManager *self,
GtkListItemTracker *tracker,
guint n_items,
guint *out_start,
guint *out_n_items)
{
/* We can't look at tracker->widget here because we might not
* have set it yet.
*/
if (tracker->position == GTK_INVALID_LIST_POSITION)
return FALSE;
/* This is magic I made up that is meant to be both
* correct and doesn't overflow when start and/or end are close to 0 or
* close to max.
* But beware, I didn't test it.
*/
*out_n_items = tracker->n_before + tracker->n_after + 1;
*out_n_items = MIN (*out_n_items, n_items);
*out_start = MAX (tracker->position, tracker->n_before) - tracker->n_before;
*out_start = MIN (*out_start, n_items - *out_n_items);
return TRUE;
}
static void
gtk_list_item_query_tracked_range (GtkListItemManager *self,
guint n_items,
guint position,
guint *out_n_items,
gboolean *out_tracked)
{
GSList *l;
guint tracker_start, tracker_n_items;
g_assert (position < n_items);
*out_tracked = FALSE;
*out_n_items = n_items - position;
/* step 1: Check if position is tracked */
for (l = self->trackers; l; l = l->next)
{
if (!gtk_list_item_tracker_query_range (self, l->data, n_items, &tracker_start, &tracker_n_items))
continue;
if (tracker_start > position)
{
*out_n_items = MIN (*out_n_items, tracker_start - position);
}
else if (tracker_start + tracker_n_items <= position)
{
/* do nothing */
}
else
{
*out_tracked = TRUE;
*out_n_items = tracker_start + tracker_n_items - position;
break;
}
}
/* If nothing's tracked, we're done */
if (!*out_tracked)
return;
/* step 2: make the tracked range as large as possible
* NB: This is O(N_TRACKERS^2), but the number of trackers should be <5 */
restart:
for (l = self->trackers; l; l = l->next)
{
if (!gtk_list_item_tracker_query_range (self, l->data, n_items, &tracker_start, &tracker_n_items))
continue;
if (tracker_start + tracker_n_items <= position + *out_n_items)
continue;
if (tracker_start > position + *out_n_items)
continue;
if (*out_n_items + position < tracker_start + tracker_n_items)
{
*out_n_items = tracker_start + tracker_n_items - position;
goto restart;
}
}
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
static void
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
gtk_list_item_manager_remove_items (GtkListItemManager *self,
GHashTable *change,
guint position,
guint n_items)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
GtkListItemManagerItem *item;
if (n_items == 0)
return;
item = gtk_list_item_manager_get_nth (self, position, NULL);
while (n_items > 0)
{
if (item->n_items > n_items)
{
item->n_items -= n_items;
gtk_rb_tree_node_mark_dirty (item);
n_items = 0;
}
else
{
GtkListItemManagerItem *next = gtk_rb_tree_node_get_next (item);
if (item->widget)
gtk_list_item_manager_release_list_item (self, change, item->widget);
item->widget = NULL;
n_items -= item->n_items;
gtk_rb_tree_remove (self->items, item);
item = next;
}
}
gtk_widget_queue_resize (GTK_WIDGET (self->widget));
}
static void
gtk_list_item_manager_add_items (GtkListItemManager *self,
guint position,
guint n_items)
{
GtkListItemManagerItem *item;
guint offset;
if (n_items == 0)
return;
item = gtk_list_item_manager_get_nth (self, position, &offset);
if (item == NULL || item->widget)
item = gtk_rb_tree_insert_before (self->items, item);
item->n_items += n_items;
gtk_rb_tree_node_mark_dirty (item);
gtk_widget_queue_resize (GTK_WIDGET (self->widget));
}
static gboolean
gtk_list_item_manager_merge_list_items (GtkListItemManager *self,
GtkListItemManagerItem *first,
GtkListItemManagerItem *second)
{
if (first->widget || second->widget)
return FALSE;
first->n_items += second->n_items;
gtk_rb_tree_node_mark_dirty (first);
gtk_rb_tree_remove (self->items, second);
return TRUE;
}
static void
gtk_list_item_manager_release_items (GtkListItemManager *self,
GQueue *released)
{
GtkListItemManagerItem *item, *prev, *next;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
guint position, i, n_items, query_n_items;
gboolean tracked;
n_items = g_list_model_get_n_items (G_LIST_MODEL (self->model));
position = 0;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
while (position < n_items)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_list_item_query_tracked_range (self, n_items, position, &query_n_items, &tracked);
if (tracked)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
position += query_n_items;
continue;
}
item = gtk_list_item_manager_get_nth (self, position, &i);
i = position - i;
while (i < position + query_n_items)
{
if (item->widget)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
g_queue_push_tail (released, item->widget);
item->widget = NULL;
i++;
prev = gtk_rb_tree_node_get_previous (item);
if (prev && gtk_list_item_manager_merge_list_items (self, prev, item))
item = prev;
next = gtk_rb_tree_node_get_next (item);
if (next && next->widget == NULL)
{
i += next->n_items;
if (!gtk_list_item_manager_merge_list_items (self, next, item))
g_assert_not_reached ();
item = gtk_rb_tree_node_get_next (next);
}
else
{
item = next;
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
else
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
i += item->n_items;
item = gtk_rb_tree_node_get_next (item);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
position += query_n_items;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
}
static void
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
gtk_list_item_manager_ensure_items (GtkListItemManager *self,
GHashTable *change,
guint update_start)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
GtkListItemManagerItem *item, *new_item;
GtkWidget *widget, *insert_after;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
guint position, i, n_items, query_n_items, offset;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
GQueue released = G_QUEUE_INIT;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gboolean tracked;
if (self->model == NULL)
return;
n_items = g_list_model_get_n_items (G_LIST_MODEL (self->model));
position = 0;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_release_items (self, &released);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
while (position < n_items)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_list_item_query_tracked_range (self, n_items, position, &query_n_items, &tracked);
if (!tracked)
{
position += query_n_items;
continue;
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
item = gtk_list_item_manager_get_nth (self, position, &offset);
for (new_item = item;
new_item && new_item->widget == NULL;
new_item = gtk_rb_tree_node_get_previous (new_item))
{ /* do nothing */ }
insert_after = new_item ? new_item->widget : NULL;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
if (offset > 0)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
new_item = gtk_rb_tree_insert_before (self->items, item);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
new_item->n_items = offset;
item->n_items -= offset;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_rb_tree_node_mark_dirty (item);
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
for (i = 0; i < query_n_items; i++)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
if (item->n_items > 1)
{
new_item = gtk_rb_tree_insert_before (self->items, item);
new_item->n_items = 1;
item->n_items--;
gtk_rb_tree_node_mark_dirty (item);
}
else
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
new_item = item;
item = gtk_rb_tree_node_get_next (item);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
if (new_item->widget == NULL)
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
if (change)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
new_item->widget = gtk_list_item_manager_try_reacquire_list_item (self,
change,
position + i,
insert_after);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
if (new_item->widget == NULL)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
new_item->widget = g_queue_pop_head (&released);
if (new_item->widget)
{
gtk_list_item_manager_move_list_item (self,
new_item->widget,
position + i,
insert_after);
}
else
{
new_item->widget = gtk_list_item_manager_acquire_list_item (self,
position + i,
insert_after);
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
else
{
if (update_start <= position + i)
gtk_list_item_manager_update_list_item (self, new_item->widget, position + i);
}
insert_after = new_item->widget;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
position += query_n_items;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
while ((widget = g_queue_pop_head (&released)))
gtk_list_item_manager_release_list_item (self, NULL, widget);
}
static void
gtk_list_item_manager_model_items_changed_cb (GListModel *model,
guint position,
guint removed,
guint added,
GtkListItemManager *self)
{
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
GHashTable *change;
GHashTableIter iter;
gpointer list_item;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
GSList *l;
guint n_items;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
n_items = g_list_model_get_n_items (G_LIST_MODEL (self->model));
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
change = g_hash_table_new (g_direct_hash, g_direct_equal);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_remove_items (self, change, position, removed);
gtk_list_item_manager_add_items (self, position, added);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
/* Check if any tracked item was removed */
for (l = self->trackers; l; l = l->next)
{
GtkListItemTracker *tracker = l->data;
if (tracker->widget == NULL)
continue;
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
if (g_hash_table_lookup (change, gtk_list_item_widget_get_item (tracker->widget)))
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
break;
}
/* At least one tracked item was removed, do a more expensive rebuild
* trying to find where it moved */
if (l)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
GtkListItemManagerItem *item, *new_item;
GtkWidget *insert_after;
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
guint i, offset;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
item = gtk_list_item_manager_get_nth (self, position, &offset);
for (new_item = item ? gtk_rb_tree_node_get_previous (item) : gtk_rb_tree_get_last (self->items);
new_item && new_item->widget == NULL;
new_item = gtk_rb_tree_node_get_previous (new_item))
{ }
if (new_item)
insert_after = new_item->widget;
else
insert_after = NULL; /* we're at the start */
for (i = 0; i < added; i++)
{
GtkWidget *widget;
widget = gtk_list_item_manager_try_reacquire_list_item (self,
change,
position + i,
insert_after);
if (widget == NULL)
{
offset++;
continue;
}
if (offset > 0)
{
new_item = gtk_rb_tree_insert_before (self->items, item);
new_item->n_items = offset;
item->n_items -= offset;
offset = 0;
gtk_rb_tree_node_mark_dirty (item);
}
if (item->n_items == 1)
{
new_item = item;
item = gtk_rb_tree_node_get_next (item);
}
else
{
new_item = gtk_rb_tree_insert_before (self->items, item);
new_item->n_items = 1;
item->n_items--;
gtk_rb_tree_node_mark_dirty (item);
}
new_item->widget = widget;
insert_after = widget;
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
/* Update tracker positions if necessary, they need to have correct
* positions for gtk_list_item_manager_ensure_items().
* We don't update the items, they will be updated by ensure_items()
* and then we can update them. */
for (l = self->trackers; l; l = l->next)
{
GtkListItemTracker *tracker = l->data;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
if (tracker->position == GTK_INVALID_LIST_POSITION)
{
/* if the list is no longer empty, set the tracker to a valid position. */
if (n_items > 0 && n_items == added && removed == 0)
tracker->position = 0;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
else if (tracker->position >= position + removed)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
tracker->position += added - removed;
}
else if (tracker->position >= position)
{
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
if (g_hash_table_lookup (change, gtk_list_item_widget_get_item (tracker->widget)))
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
{
/* The item is gone. Guess a good new position */
tracker->position = position + (tracker->position - position) * added / removed;
if (tracker->position >= n_items)
{
if (n_items == 0)
tracker->position = GTK_INVALID_LIST_POSITION;
else
tracker->position--;
}
tracker->widget = NULL;
}
else
{
/* item was put in its right place in the expensive loop above,
* and we updated its position while at it. So grab it from there.
*/
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
tracker->position = gtk_list_item_widget_get_position (tracker->widget);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
else
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
/* nothing changed for items before position */
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_list_item_manager_ensure_items (self, change, position + added);
/* final loop through the trackers: Grab the missing widgets.
* For items that had been removed and a new position was set, grab
* their item now that we ensured it exists.
*/
for (l = self->trackers; l; l = l->next)
{
GtkListItemTracker *tracker = l->data;
GtkListItemManagerItem *item;
if (tracker->widget != NULL ||
tracker->position == GTK_INVALID_LIST_POSITION)
continue;
item = gtk_list_item_manager_get_nth (self, tracker->position, NULL);
g_assert (item != NULL);
g_assert (item->widget);
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
tracker->widget = GTK_LIST_ITEM_WIDGET (item->widget);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
}
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
g_hash_table_iter_init (&iter, change);
while (g_hash_table_iter_next (&iter, NULL, &list_item))
{
gtk_list_item_manager_release_list_item (self, NULL, list_item);
}
g_hash_table_unref (change);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_widget_queue_resize (self->widget);
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
}
static void
gtk_list_item_manager_model_selection_changed_cb (GListModel *model,
guint position,
guint n_items,
GtkListItemManager *self)
{
GtkListItemManagerItem *item;
guint offset;
item = gtk_list_item_manager_get_nth (self, position, &offset);
if (offset)
{
position += item->n_items - offset;
if (item->n_items - offset > n_items)
n_items = 0;
else
n_items -= item->n_items - offset;
item = gtk_rb_tree_node_get_next (item);
}
while (n_items > 0)
{
if (item->widget)
gtk_list_item_manager_update_list_item (self, item->widget, position);
position += item->n_items;
n_items -= MIN (n_items, item->n_items);
item = gtk_rb_tree_node_get_next (item);
}
}
static void
gtk_list_item_manager_clear_model (GtkListItemManager *self)
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
GSList *l;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
if (self->model == NULL)
return;
gtk_list_item_manager_remove_items (self, NULL, 0, g_list_model_get_n_items (G_LIST_MODEL (self->model)));
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
for (l = self->trackers; l; l = l->next)
{
gtk_list_item_tracker_unset_position (self, l->data);
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
g_signal_handlers_disconnect_by_func (self->model,
gtk_list_item_manager_model_selection_changed_cb,
self);
g_signal_handlers_disconnect_by_func (self->model,
gtk_list_item_manager_model_items_changed_cb,
self);
g_clear_object (&self->model);
}
static void
gtk_list_item_manager_dispose (GObject *object)
{
GtkListItemManager *self = GTK_LIST_ITEM_MANAGER (object);
gtk_list_item_manager_clear_model (self);
g_clear_object (&self->factory);
g_clear_pointer (&self->items, gtk_rb_tree_unref);
G_OBJECT_CLASS (gtk_list_item_manager_parent_class)->dispose (object);
}
static void
gtk_list_item_manager_class_init (GtkListItemManagerClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = gtk_list_item_manager_dispose;
}
static void
gtk_list_item_manager_init (GtkListItemManager *self)
{
}
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
void
gtk_list_item_manager_set_factory (GtkListItemManager *self,
GtkListItemFactory *factory)
{
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
guint n_items;
GSList *l;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
g_return_if_fail (GTK_IS_LIST_ITEM_FACTORY (factory));
if (self->factory == factory)
return;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
n_items = self->model ? g_list_model_get_n_items (G_LIST_MODEL (self->model)) : 0;
gtk_list_item_manager_remove_items (self, NULL, 0, n_items);
g_set_object (&self->factory, factory);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_add_items (self, 0, n_items);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_list_item_manager_ensure_items (self, NULL, G_MAXUINT);
for (l = self->trackers; l; l = l->next)
{
GtkListItemTracker *tracker = l->data;
GtkListItemManagerItem *item;
if (tracker->widget == NULL)
continue;
item = gtk_list_item_manager_get_nth (self, tracker->position, NULL);
g_assert (item);
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
tracker->widget = GTK_LIST_ITEM_WIDGET (item->widget);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
}
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
}
GtkListItemFactory *
gtk_list_item_manager_get_factory (GtkListItemManager *self)
{
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
return self->factory;
}
void
gtk_list_item_manager_set_model (GtkListItemManager *self,
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
GtkSelectionModel *model)
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
{
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
g_return_if_fail (model == NULL || GTK_IS_SELECTION_MODEL (model));
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
if (self->model == model)
return;
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
gtk_list_item_manager_clear_model (self);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
if (model)
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
{
self->model = g_object_ref (model);
g_signal_connect (model,
"items-changed",
G_CALLBACK (gtk_list_item_manager_model_items_changed_cb),
self);
g_signal_connect (model,
"selection-changed",
G_CALLBACK (gtk_list_item_manager_model_selection_changed_cb),
self);
gtk_list_item_manager_add_items (self, 0, g_list_model_get_n_items (G_LIST_MODEL (model)));
}
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
}
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
GtkSelectionModel *
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
gtk_list_item_manager_get_model (GtkListItemManager *self)
{
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
return self->model;
}
/*
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
* gtk_list_item_manager_acquire_list_item:
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
* @self: a #GtkListItemManager
* @position: the row in the model to create a list item for
listitemmanager: Switch from "insert_before" to "insert_after" argumnet We reorder widgets start to end, so when reusing a list item, we correctly know the previous sibling for that list item, but not the next sibling yet. We just know the widget it should ultimately be in front of. So we can do a more correct guess of the list item's place in the widget tree if we think about where to place an item like this. Actually using this change will come in the next commit.
2018-09-28 00:05:46 +00:00
* @prev_sibling: the widget this widget should be inserted before or %NULL
* if it should be the first widget
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
*
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
* Creates a list item widget to use for @position. No widget may
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
* yet exist that is used for @position.
*
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
* When the returned item is no longer needed, the caller is responsible
* for calling gtk_list_item_manager_release_list_item().
* A particular case is when the row at @position is removed. In that case,
* all list items in the removed range must be released before
* gtk_list_item_manager_model_changed() is called.
*
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
* Returns: a properly setup widget to use in @position
**/
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static GtkWidget *
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
guint position,
listitemmanager: Switch from "insert_before" to "insert_after" argumnet We reorder widgets start to end, so when reusing a list item, we correctly know the previous sibling for that list item, but not the next sibling yet. We just know the widget it should ultimately be in front of. So we can do a more correct guess of the list item's place in the widget tree if we think about where to place an item like this. Actually using this change will come in the next commit.
2018-09-28 00:05:46 +00:00
GtkWidget *prev_sibling)
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
{
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
GtkWidget *result;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
gpointer item;
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
gboolean selected;
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
listitemmanager: Switch from "insert_before" to "insert_after" argumnet We reorder widgets start to end, so when reusing a list item, we correctly know the previous sibling for that list item, but not the next sibling yet. We just know the widget it should ultimately be in front of. So we can do a more correct guess of the list item's place in the widget tree if we think about where to place an item like this. Actually using this change will come in the next commit.
2018-09-28 00:05:46 +00:00
g_return_val_if_fail (prev_sibling == NULL || GTK_IS_WIDGET (prev_sibling), NULL);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
result = gtk_list_item_widget_new (self->factory,
self->item_css_name);
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
listitemwidget: Add single-click-activate Add a mode to GtkListItemWidget that activates on single click and selects on hover. Make GtkListItemManager set this on its items when its own 'property' of the same name is set.
2019-12-14 01:56:32 +00:00
gtk_list_item_widget_set_single_click_activate (GTK_LIST_ITEM_WIDGET (result), self->single_click_activate);
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
item = g_list_model_get_item (G_LIST_MODEL (self->model), position);
selected = gtk_selection_model_is_selected (self->model, position);
listitemfactory: Reorganize vfuncs Instead of bind/rebind/update/unbind, we now just have update, and the factories get to interpret that in the way they want.
2019-11-02 17:56:36 +00:00
gtk_list_item_widget_update (GTK_LIST_ITEM_WIDGET (result), position, item, selected);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
g_object_unref (item);
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
gtk_widget_insert_after (result, self->widget, prev_sibling);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
listview: Add GtkListItem GtkListItem is a generic row widget that is supposed to replace GtkListBoxRow and GtkFlowBoxChild.
2018-09-21 03:05:34 +00:00
return GTK_WIDGET (result);
listview: Add GtkListItemManager It's all stubs for now, but here's the basic ideas about what this object is supposed to do: (1) It's supposed to be handling all the child GtkWidgets that are used by the listview, so that the listview can concern itself with how many items it needs and where to put them. (2) It's meant to do the caching of widgets that are not (currently) used. (3) It's meant to track items that remain in the model across items-changed emissions and just change position. (2) It's code that can be shared between listview and potential other widgets like a GridView. It's also free to assume that the number of items it's supposed to manage doesn't grow too much, so it's free to use O(N) algorithms.
2018-09-20 03:18:34 +00:00
}
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
/**
* gtk_list_item_manager_try_acquire_list_item_from_change:
* @self: a #GtkListItemManager
* @position: the row in the model to create a list item for
listitemmanager: Switch from "insert_before" to "insert_after" argumnet We reorder widgets start to end, so when reusing a list item, we correctly know the previous sibling for that list item, but not the next sibling yet. We just know the widget it should ultimately be in front of. So we can do a more correct guess of the list item's place in the widget tree if we think about where to place an item like this. Actually using this change will come in the next commit.
2018-09-28 00:05:46 +00:00
* @prev_sibling: the widget this widget should be inserted after or %NULL
* if it should be the first widget
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
*
* Like gtk_list_item_manager_acquire_list_item(), but only tries to acquire list
* items from those previously released as part of @change.
* If no matching list item is found, %NULL is returned and the caller should use
* gtk_list_item_manager_acquire_list_item().
*
* Returns: (nullable): a properly setup widget to use in @position or %NULL if
* no item for reuse existed
**/
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static GtkWidget *
gtk_list_item_manager_try_reacquire_list_item (GtkListItemManager *self,
GHashTable *change,
guint position,
GtkWidget *prev_sibling)
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
{
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
GtkWidget *result;
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
gpointer item;
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
listitemmanager: Switch from "insert_before" to "insert_after" argumnet We reorder widgets start to end, so when reusing a list item, we correctly know the previous sibling for that list item, but not the next sibling yet. We just know the widget it should ultimately be in front of. So we can do a more correct guess of the list item's place in the widget tree if we think about where to place an item like this. Actually using this change will come in the next commit.
2018-09-28 00:05:46 +00:00
g_return_val_if_fail (prev_sibling == NULL || GTK_IS_WIDGET (prev_sibling), NULL);
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
/* XXX: can we avoid temporarily allocating items on failure? */
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
item = g_list_model_get_item (G_LIST_MODEL (self->model), position);
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
if (g_hash_table_steal_extended (change, item, NULL, (gpointer *) &result))
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
{
listitemfactory: Reorganize vfuncs Instead of bind/rebind/update/unbind, we now just have update, and the factories get to interpret that in the way they want.
2019-11-02 17:56:36 +00:00
GtkListItemWidget *list_item = GTK_LIST_ITEM_WIDGET (result);
gtk_list_item_widget_update (list_item,
position,
gtk_list_item_widget_get_item (list_item),
listitemmanager: Update selections properly Replace a previous fix with a more correct one: Update the selected state from the model instead of reusing the old state, the model might have updated the selected state.
2020-06-08 16:06:01 +00:00
gtk_selection_model_is_selected (self->model, position));
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
gtk_widget_insert_after (result, self->widget, prev_sibling);
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
/* XXX: Should we let the listview do this? */
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
gtk_widget_queue_resize (result);
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
}
else
{
result = NULL;
}
g_object_unref (item);
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
return result;
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
}
listview: Try to keep the list items in order when scrolling Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
2018-09-28 01:33:16 +00:00
/**
* gtk_list_item_manager_move_list_item:
* @self: a #GtkListItemManager
* @list_item: an acquired #GtkListItem that should be moved to represent
* a different row
* @position: the new position of that list item
* @prev_sibling: the new previous sibling
*
* Moves the widget to represent a new position in the listmodel without
* releasing the item.
*
* This is most useful when scrolling.
**/
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static void
listview: Try to keep the list items in order when scrolling Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
2018-09-28 01:33:16 +00:00
gtk_list_item_manager_move_list_item (GtkListItemManager *self,
GtkWidget *list_item,
guint position,
GtkWidget *prev_sibling)
{
gpointer item;
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
gboolean selected;
listview: Try to keep the list items in order when scrolling Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
2018-09-28 01:33:16 +00:00
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
item = g_list_model_get_item (G_LIST_MODEL (self->model), position);
selected = gtk_selection_model_is_selected (self->model, position);
listitemfactory: Reorganize vfuncs Instead of bind/rebind/update/unbind, we now just have update, and the factories get to interpret that in the way they want.
2019-11-02 17:56:36 +00:00
gtk_list_item_widget_update (GTK_LIST_ITEM_WIDGET (list_item),
position,
item,
selected);
listview: Try to keep the list items in order when scrolling Instead of just destroying all items and then recreating them (or even hide()ing and then show()ing them again (or even even repositioning them in the widget tree)), just try to reust them in the order they are. This works surprisingly well when scrolling and most/all widgets just moved.
2018-09-28 01:33:16 +00:00
gtk_widget_insert_after (list_item, _gtk_widget_get_parent (list_item), prev_sibling);
g_object_unref (item);
}
listitem: Add gtk_list_item_get_position() Also refactor the whole list item management yet again. Now, list item APIs doesn't have bind/unbind functions anymore, but only property setters. The item factory is the only one doing the binding. As before, the item manager manages when items need to be bound.
2018-09-24 02:01:37 +00:00
/**
* gtk_list_item_manager_update_list_item:
* @self: a #GtkListItemManager
* @item: a #GtkListItem that has been acquired
* @position: the new position of that list item
*
* Updates the position of the given @item. This function must be called whenever
* the position of an item changes, like when new items are added before it.
**/
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static void
listitem: Add gtk_list_item_get_position() Also refactor the whole list item management yet again. Now, list item APIs doesn't have bind/unbind functions anymore, but only property setters. The item factory is the only one doing the binding. As before, the item manager manages when items need to be bound.
2018-09-24 02:01:37 +00:00
gtk_list_item_manager_update_list_item (GtkListItemManager *self,
GtkWidget *item,
guint position)
{
listitemfactory: Reorganize vfuncs Instead of bind/rebind/update/unbind, we now just have update, and the factories get to interpret that in the way they want.
2019-11-02 17:56:36 +00:00
GtkListItemWidget *list_item = GTK_LIST_ITEM_WIDGET (item);
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
gboolean selected;
listitem: Add gtk_list_item_get_position() Also refactor the whole list item management yet again. Now, list item APIs doesn't have bind/unbind functions anymore, but only property setters. The item factory is the only one doing the binding. As before, the item manager manages when items need to be bound.
2018-09-24 02:01:37 +00:00
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
g_return_if_fail (GTK_IS_LIST_ITEM_WIDGET (item));
listitem: Add gtk_list_item_get_position() Also refactor the whole list item management yet again. Now, list item APIs doesn't have bind/unbind functions anymore, but only property setters. The item factory is the only one doing the binding. As before, the item manager manages when items need to be bound.
2018-09-24 02:01:37 +00:00
listview: Add initial support for displaying selections
2018-10-03 16:53:06 +00:00
selected = gtk_selection_model_is_selected (self->model, position);
listitemfactory: Reorganize vfuncs Instead of bind/rebind/update/unbind, we now just have update, and the factories get to interpret that in the way they want.
2019-11-02 17:56:36 +00:00
gtk_list_item_widget_update (list_item,
position,
gtk_list_item_widget_get_item (list_item),
selected);
listitem: Add gtk_list_item_get_position() Also refactor the whole list item management yet again. Now, list item APIs doesn't have bind/unbind functions anymore, but only property setters. The item factory is the only one doing the binding. As before, the item manager manages when items need to be bound.
2018-09-24 02:01:37 +00:00
}
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
/*
* gtk_list_item_manager_release_list_item:
* @self: a #GtkListItemManager
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
* @change: (allow-none): The change associated with this release or
* %NULL if this is a final removal
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
* @item: an item previously acquired with
* gtk_list_item_manager_acquire_list_item()
*
* Releases an item that was previously acquired via
* gtk_list_item_manager_acquire_list_item() and is no longer in use.
**/
listitemmanager: Simplify Remove a bunch of API from the headers that isn't used anymore and then refactor code to not call it anymore. In particular, get rid of GtkListItemManagerChange and replace it with a GHashTable.
2019-02-22 02:05:54 +00:00
static void
gtk_list_item_manager_release_list_item (GtkListItemManager *self,
GHashTable *change,
GtkWidget *item)
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
{
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
g_return_if_fail (GTK_IS_LIST_ITEM_WIDGET (item));
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
if (change != NULL)
{
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
if (g_hash_table_insert (change, gtk_list_item_widget_get_item (GTK_LIST_ITEM_WIDGET (item)), item))
listview: Change change management Add a GtkListItemManagerChange object that tracks all removed list rows during an item-changed signal so they can be added back later.
2018-09-22 20:11:27 +00:00
return;
g_warning ("FIXME: Handle the same item multiple times in the list.\nLars says this totally should not happen, but here we are.");
}
listview: Make the listitemmanager stricter Require that items created with the manager get destroyed via the manager. To that purpose, renamed create_list_item() to acquire_list_item() and add a matching release_list_item() function. This way, the manager can in the future keep track of all items and cache information about them.
2018-09-21 03:32:00 +00:00
gtk_widget_unparent (item);
}
listitemmanager: Move list of listitems here All the listview infrastructure moved with it, so the next step is moving that back...
2019-02-06 19:48:08 +00:00
listitemwidget: Add single-click-activate Add a mode to GtkListItemWidget that activates on single click and selects on hover. Make GtkListItemManager set this on its items when its own 'property' of the same name is set.
2019-12-14 01:56:32 +00:00
void
gtk_list_item_manager_set_single_click_activate (GtkListItemManager *self,
gboolean single_click_activate)
{
GtkListItemManagerItem *item;
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
self->single_click_activate = single_click_activate;
for (item = gtk_rb_tree_get_first (self->items);
item != NULL;
item = gtk_rb_tree_node_get_next (item))
{
if (item->widget)
gtk_list_item_widget_set_single_click_activate (GTK_LIST_ITEM_WIDGET (item->widget), single_click_activate);
}
}
gboolean
gtk_list_item_manager_get_single_click_activate (GtkListItemManager *self)
{
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), FALSE);
return self->single_click_activate;
}
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
GtkListItemTracker *
gtk_list_item_tracker_new (GtkListItemManager *self)
{
GtkListItemTracker *tracker;
g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
tracker = g_slice_new0 (GtkListItemTracker);
tracker->position = GTK_INVALID_LIST_POSITION;
self->trackers = g_slist_prepend (self->trackers, tracker);
return tracker;
}
void
gtk_list_item_tracker_free (GtkListItemManager *self,
GtkListItemTracker *tracker)
{
gtk_list_item_tracker_unset_position (self, tracker);
self->trackers = g_slist_remove (self->trackers, tracker);
g_slice_free (GtkListItemTracker, tracker);
gtk_list_item_manager_ensure_items (self, NULL, G_MAXUINT);
gtk_widget_queue_resize (self->widget);
}
void
gtk_list_item_tracker_set_position (GtkListItemManager *self,
GtkListItemTracker *tracker,
guint position,
guint n_before,
guint n_after)
{
GtkListItemManagerItem *item;
guint n_items;
gtk_list_item_tracker_unset_position (self, tracker);
if (self->model == NULL)
return;
n_items = g_list_model_get_n_items (G_LIST_MODEL (self->model));
if (position >= n_items)
position = n_items - 1; /* for n_items == 0 this underflows to GTK_INVALID_LIST_POSITION */
tracker->position = position;
tracker->n_before = n_before;
tracker->n_after = n_after;
gtk_list_item_manager_ensure_items (self, NULL, G_MAXUINT);
item = gtk_list_item_manager_get_nth (self, position, NULL);
if (item)
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
tracker->widget = GTK_LIST_ITEM_WIDGET (item->widget);
listitemmanager: Add trackers ... and replace the anchor tracking with a tracker. Trackers track an item through the list across changes and ensure that this item (and potentially siblings before/after it) are always backed by a GtkListItem and that if the item gets removed a replacement gets chosen. This is now used for tracking the anchor but can also be used to add trackers for the cursor later.
2019-02-27 07:45:28 +00:00
gtk_widget_queue_resize (self->widget);
}
guint
gtk_list_item_tracker_get_position (GtkListItemManager *self,
GtkListItemTracker *tracker)
{
return tracker->position;
}
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